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L. HESCHER, MAIDEN NAME IBAUMANN CLOSURE Filed May 14, 1932 PatentedAug. 27, 1935 UITED STATES dans cLosURE Lotte Hescher, maiden nameBaumann, Frankfort-on-the-Main-Wiesenau,

Germany, as-

signor, by mesne assignments, to Harry L. Worthington, San Francisco,Calif., doing business as Worthington Laboratories Application May 14,1932, Serial No. 611,408 In Italy September 10, 1931 9 Claims.

The invention relates to a closure for the closing of liquid, airorgasproof receptacles made of rubber, rubbered or other material, such asfor example ice bags, hot water bottles, water pillows,

5 tobacco pouches and bags in general that are intended to receiveobjects and to protect them against water or moisture, for example whenbathing, in rowing sports or water sports in general which consists of atube-like lling and draining member that is made of a waterproofmaterial such as rubber or the like, and which may be rolled up from itsfree end, and as a whole or partially is provided over substantially itswidth with one or more inserted or superposed parts made of a suitable`material such as of soft metal sheet, wire netting made ci soft metalsheet, or other suitable wire gauze, being made up either of one or ofseveral parts, and serving to maintain the said tube-like filling anddraining member in its rolled up position.

The inserted or superposed clamping part or clamping parts may projectover the tube-like filling and draining member either at the sides' orat the lower end or at both, so that, in the one case, the tail-like endwill come to lie on top of the uppermost layer of the rolled uptube-like draining and filling member, and thus act against the forcesthat tend to unroll the latter.

The iilling and draining member together with the inserted or superposedclamping part take preferably a shape that tapers towards the top withthe object of completely enveloping the inner layers of the filling anddraining member by the outer layers and to press them over their entirewidth tightly together so as to ensure an efiicient closing of thereceptacle.

Easy rolling up and safety against unintended unroiling of the layers isobtained by lengthening one of the two wall parts of the tube-like llingand draining member that come to lie ilat upon each other beyond theopening of the receptacle, and by providing over the Width of thisprolongation a roller-like reenforced part made `of the same material asthe tube-like filling and draining member so as to form a core aroundwhich the layers of the said filling and draining member may be rolledup. The central position of this roller-like reenforced part provides aneflicient check against the forces that tend to unroll the layers, sincethistendency of unrolling will show itself especially with the innerlayers.

The tube-like filling and draining member may, with not too broad andcomparatively small bags such as generally serve to receive objects whenbathing, rowing or in other water sports, be made (Cl. 15G-3) of a widththat corresponds with the width of the bag itself as in this case, thereis no necessity for a restriction in width.

The accompanying drawing shows by way of example one method of how theinvention may -5 be carried into eiect.

Fig. l shows a iront View of an ice bag with an open not rolled uptube-like filling and draining member that, in one of its wall partsthat comes to lie flat upon the other, is provided with an insertedclamping part that is made of a thin and soft metal sheet;

Fig. lo, is a section through the filling and draining member on theline A-B of Fig. l;

Fig. 2 is a front view of the ice bag with the iilling and drainingmember rolled up;f

Fig. 3 is a perspective view of the rolled up filling and drainingmember.

Figs. 4, 5, and 6 show certain modiiications and have longitudinallydivided clamping parts made of soft metal sheet and inserted into onepart oi the iilling and draining member a roller-like reen'forced partbeing provided at the openingof the receptacle.

Fig. 4 is a iront view of one wall of the filling 25 and draining memberinto which the clamping part has been inserted;

Fig. 5 shows a longitudinal and Fig. 6 a transverse section through thefilling and draining member, whilst Fig. '7 is a front view of therolled up closing funnel.

In Figs. 1 and 2 the ice bag that is made of rubber, rubbered or othermaterial is denoted by a and its tube-like filling and draining memberthat is made of the same material by b. The walls of the iilling anddraining member fold longitudinally and the two wall parts come to lieiiat upon each other. One of these wall parts is provided with aninserted clamping part c that is made of a suitable material such as ofthin, soit nonresilient metal sheet for example. On closing the openingof the receptacle, the wall parts of the` tube-like filling and drainingmember that lie flat upon each other are rolled up from the opening, asis made clear from Fig. 3. The inserted clamping part c in thisembodiment covers almost the full width of the tube-like filling anddraining member, and the latter as well as the clamping part taper insire towards the top. The width of the inserted clamping part, and itsform that appropriately suit that of the tube-like filling and drainingmember, guarantee an ecient and liquidproof closing of the receptacle.The clamping part may A be inserted or superposed on the tube-likefilling and draining member in any suitable way, such as by vulcanizingor by any appropriate method. The clamping part that naturally can alsobe made of a non-metallic suitable material serves to maintain thetube-like filling and draining member in its rolled up position, andfurther special means may be provided to check the unrolling tendency ofthe said filling and draining member.

The special closing funnel that forms the object of the invention iseasy to manufacture and provides a reliable closing of the receptacle.It is impossible for the rolledup iilling and draining member to openeven if it is subjected to pressure from the exterior, as when servingas a seat or the like.

The forms shown in Figs. 4 to 6 are provided with two clamping parts d,e in place of a single one, which are inserted into the walls of thetubelike lling and draining member b, and which are fabric-covered andthus held together whilst they project towards the bottom beyond theiilling and draining member proper so as to form a tail-like extensiond1 el. The double walled cover of the clamping part may be so made as toform a kind of bag with an appropriate opening through which theclamping members can easily be inserted or removed. The free end of theother wall part that carries no clamping part is fitted with aroller-like reenforced part ,f so as to facilitate'the rolling up of thefilling and draining member on closing the receptacle. The clampingparts d, e of one part of the wall maintain the filling and drainingmember in its rolled up position in which the two wall parts come to lieupon each other. Eflicient closing of the receptacle is furthermoreaided by the free tail-like part d1, e1 of the clamping part that, inthe rolled up position of the lling and draining member, comes to lieuppermost and thus acts against the forces that tend toV unroll the saidlling and rdraining member. The prolonged parts may be so arranged thatthey project over the sides instead of over the lower end of the fillingand draining member, and may be folded over upon the upper layer in therolled up state of the filling and draining member.

The longitudinally divided and inserted clamping part as shown in Figs.4 to 6 presents over the one-piece clamping part the advantage offacilitating the opening and expanding of the tubelike filling anddraining member, since these clamping parts at their adjacent edgesyield veasily to every eifort and thereby facilitate the manipulation ofthe. bag.

I am aware that changes in the form and proportion of parts, and in thedetails of construction of my invention may be made without departingfrom the spirit or sacrificing the advantages thereof, and I reserve theright to make all such changes as fairly fall within the scope of thefollowing claims.

I claim:

1. In a device of the character described, a relatively flexible llingand draining part adapted toV be rolled up to close the openingtherethrough, and a relatively stiff pliable member secured to saidlilling and draining part adjacent one end thereof, said member having apart extending along one wall of the filling and draining part forsubstantially .the entire extent of the surface of said wall and adaptedto be rolled up with the same in closing the opening for maintaining thesaine in rolled up position, and said member also having a part freefrom the iilling and draining part and adapted to be bent around theroll of the filling and draining part when it is rolled up to close theopening and frictionally binding said roll to assist in preventing thelatter from unrolling.

2. In a device of the character described, a relatively flexible fillingand draining part adapted to be rolled up to close the openingtherethrough, and a relatively stiif pliable member secured to saidiilling and draining part adjacent one end thereof, said member having apart extending along one wall of the filling and draining part, securedthereto substantially throughout its length, and adapted to be rolled upwith the same in closing the opening for maintaining the same in rolledup position and said member also having a part free from the filling anddraining part and adapted to be bent around the roll of the lling anddraining part when it is rolled up to close theopening and frictionallybinding said roll to assist in preventing the latter from unrolling.

3. In a device of the character described, a relatively iiexible fillingand draining part having an opening therethrough and adapted to berolled up to close said opening, and means for maintaining said iillingand'draining part in rolled up position comprising a plurality ofpliable nonresilient plate like members extending longitudinally of thefilling and draining part, said members having their inner longitudinaledges laterally spaced at a point centrally of said part said membersbeing secured to and substantially cov-. ering one side thereof, wherebywhen said filling and draining part is rolled up to close the openingsaid members will also be rolled up and maintain the parts in rolled upposition, and whereby when in unrolled position, the side of the fillingand draining part Ymay be bent in substantially a straight line betweensaid members to open and maintain extended the filling and drainingpart. 4. In a device of the ycharacter described, a

` relatively iiexible filling and draining part having an openingtherethrough and adapted to be rolled up to close said opening, andmeans for maintaining said iilling and draining part in rolled upposition comprising a plurality of strips of sheet metal extendinglongitudinally of the filling and draining part having their innerlongitudinal edges spaced laterally at a point extending longitudinallyof the middle of said part, said members being secured to andsubstantially covering one side thereof, whereby when said iilling anddraining part is rolled up to close the opening, said strips will alsobe rolled up and maintain the parts in rolled up position, and wherebywhen in unrolled position the side of the filling and draining part maybe bent in substantially a straight line between said strips to open andmaintain extended the iilling and draining part.

5. In a device of the character described, a relatively flexible fillingand draining part adapted to be rolled up to close the openingtherethrough, and means for maintaining said filling and draining partin rolled up position comprising a plurality of relatively stiff pliablemembers having portions extending longitudinally of the filling anddraining part and secured to and substantially covering one sidethereof, whereby when said filling and draining part is rolled up toclose the opening said members will also be rolled up and maintain theparts in rolled up position, and whereby when in unrolled position theside of the filling and draining part may be bent in substantially astraight line between said members to open and maintain extended theiilling and draining part, said members also having portions free fromthe iilling and draining part adjacent one end thereof and adapted to bebent around the roll of the filling and draining part when it is rolledup to close the opening for frictionally binding the said roll toprevent its unrolling.

6. In a device of the character described, a relatively flexible fillingand draining part adapted to be rolled up to close the openingtherethrough, and means for maintaining said filling and draining partin rolled up position comprising a plurality of strips of sheet metalhaving portions extending longitudinally of the filling and drainingpart and secured to and substantially covering one side thereof, wherebywhen said iilling and draining part is rolled up to close the openingsaid sheets will also be rolled up and maintain the parts in rolled upposition, and Whereby when in unrolled position the side of the fillingand draining part may bend in substantially a straight line between saidstrips to open and maintain extended the iilling and draining part, saidstrips also having portions free from the filling and draining partadjacent one end thereof and adapted to be bent around the roll of theiilling and draining part when it is rolled upto close the opening forfrictionally binding the said roll to prevent its unrolling.

7. In a device of the character described, a iilling and drainingportion and means for effecting the closing of said portion, saidportion and said means comprising an elongated neck-like extensionhaving a pair of flat opposing walls, one of said walls being of agreater length than the other of said walls and having a roller-likereinforcement on the free end thereof for facilitating the rolling up ofsaid portion, said other wall having secured thereto a strip of pliablemetal which extends thus secured. from the free end of the said walldownwardly for substantially the entire extent of said wall insofar asit forms one of the Walls of said portion, and then extends freely for alesser distance to form a tail-like part, said walls being adapted to beplaced together and rolled up on said roller-like reinforcement togetherwith said secured pliable strip and said tail-like part adapted to bebent around said walls when they are rolled up to hold the latter insuch position.

8. In a device of the character described, a lling and draining portionhaving an opening therethrough, said portion comprising a pair ofopposite side walls, one of said walls having secured thereto an encasedpliable metallic element divided substantially centrally andlongitudinally thereof, said element extending substantially the fullwidth of said wall, said walls and said element adapted to be rolled uptogether to close said opening, said element tending to prevent saidrolled up walls from unrolling, said division in said element providingfor the flexing of the latter and its attached Wall longitudinally in asubstantially straight line for extending the mouth of said opening whendesired.

9. A container comprising a resilient body part formed of a pair ofwalls, each having at one end a relatively narrow extension forming acontinuation thereof, said extensions opposing each other and providinga neck for the container capable of being rolled for closing the latter,and a pliable locking means for the neck when rolled, said means beingsecured for a portion of its length from its outer surface to andlengthwise of one of said extensions thereby providing a freed innerpart overlapping one of said walls, said means capable of being rolledsimultaneously with the neck to position said part at the outer portionof and for maintaining the rolled structure in position to close thecontainer.

LOT'IE HESCI-IER, MArnEN NAME BAUMANN.

